Add Authentik and oauth2-proxy support to noble cluster setup, including environment variables, playbook tags, and landing URLs. Update README and kustomization.yaml to reflect new OIDC integration, enhancing security and user authentication capabilities.

ansible/roles/noble_authentik/templates/authentik-extra-values.yaml.j2

@@ -0,0 +1,16 @@
+---
+authentik:
+  secret_key: "{{ noble_authentik_secret_key }}"
+  postgresql:
+    password: "{{ noble_authentik_postgresql_password }}"
+global:
+  env:
+    - name: AUTHENTIK_BOOTSTRAP_TOKEN
+      value: "{{ noble_authentik_bootstrap_token }}"
+    - name: AUTHENTIK_BOOTSTRAP_EMAIL
+      value: "{{ noble_authentik_bootstrap_email }}"
+    - name: AUTHENTIK_BOOTSTRAP_PASSWORD
+      value: "{{ noble_authentik_bootstrap_password }}"
+postgresql:
+  auth:
+    password: "{{ noble_authentik_postgresql_password }}"